Sébastien Guy
Partner | Montréal
Montréal: 514-982-4020

Sébastien is an experienced insolvency lawyer who advises clients on all aspects of commercial reorganizations, workout arrangements, receiverships and other enforcement of security. Sébastien advises debtor companies, secured and unsecured creditors, purchasers of distressed assets, monitors and trustees, and other parties affected by business insolvency issues.

Sébastien also practises commercial litigation with an emphasis on corporate and securities litigation.

  • Acted on behalf of American Apparel with respect to its Canadian restructuring under the Bankruptcy and Insolvency Act (BIA)

  • Acted on behalf of Bloom Lake General Partner Limited and various affiliates owning one of the largest iron ore mines in Canada, in the context of proceedings filed under the Companies' Creditors Arrangement Act (CCAA)

  • Acted on behalf of an alternative financing provider with respect to its CCAA filing with total indebtedness of C$113-million

  • Acted on behalf of RB Energy Inc. and Quebec Lithium Inc., mining companies operating iodine and lithium mines, with respect to proceedings filed under the CCAA

  • Acted on behalf of an asbestos mining company in proceedings pursuant to the CCAA in relation to the Canadian recognition of its U.S. restructuring proceedings

  • Acted on behalf of hotel operators with respect to their restructuring under the BIA

  • Represented public companies in obtaining approval of plans of arrangement under the Canada Business Corporations Act

  • Represented a public mining company for approval of the first plan of arrangement under the new Business Corporations Act (Quebec)

  • Represented a royalty company seeking the recognition of an overriding royalty in the context of insolvency proceedings involving mining companies

  • Represented various creditors and debtors in large restructuring matters

  • Defended a mining company in arbitration proceedings regarding the interpretation of an option agreement

  • Represented financial institutions in the realization of securities

  • Represented public companies and dissenting shareholders in the context of proxy battles


Sébastien is recognized as a leading Canadian lawyer by the following publications:

  • The Best Lawyers in Canada (2017-2020: Corporate and Commercial Litigation, Insolvency and Financial Restructuring Law; 2016: Insolvency and Financial Restructuring Law)

  • IFLR1000: The Guide to the World's Leading Financial Law Firms - 2019 Edition (Restructuring and Insolvency – Notable practitioner)

  • Benchmark Canada: The Definitive Guide to Canada's Leading Litigation Firms and Attorneys (2018: Litigation Star – Canada: Arbitration, Commercial, Aviation and Securities; 2015 and 2016: National Litigation Star: Insolvency; Provincial Litigation Star: Quebec: Arbitration, Commercial, Securities, and Other: Aviation; 2014: National Litigation Star: Insolvency; Provincial Litigation Star: Quebec: Arbitration, Commercial, and Securities)

  • The Canadian Legal Lexpert Directory 2018 (Insolvency Litigation and Financial Restructuring)

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Blakes Bulletin on Restructuring & Insolvency, February 20, 2019.
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